[Feat] support `snapcraft` build package to releases (#697)

* build(snap): support snapcraft package

- add `snap/snapcraft.yaml` file

NOTE: under `devmode` until fit to release

* ci(gh-action): support `snapcraft` build and publish to `gh-release` page

.github/workflows/cd.yml

@@ -65,6 +65,9 @@ jobs:
         run: |
           sudo apt-get update --fix-missing
           sudo apt-get install -y --no-install-recommends liblua5.1-0-dev libluajit-5.1-dev gcc pkg-config curl git make ca-certificates
+          sudo apt-get install -y snapd
+          sudo snap install snapcraft --classic
+          sudo snap install multipass --classic --beta
 
       - if: matrix.build == 'linux-musl'
         run: sudo apt-get install -y musl-tools
@@ -81,6 +84,13 @@ jobs:
       - name: Running cargo build
         run: cargo build --locked --release --target ${{ matrix.target }}
 
+      - name: Running snapcraft build
+        run: |
+          snapcraft
+          printf ' [ INFO ] generated <snapcraft> files include:\n'
+          command ls -Al | grep "\.snap" | awk '{ print $9 }'
+          mv ./*.snap ./xplr.snap
+
       - name: Install gpg secret key
         run: |
           cat <(echo -e "${{ secrets.GPG_SECRET }}") | gpg --batch --import
@@ -103,6 +113,7 @@ jobs:
             target/${{ matrix.target }}/release/xplr-${{ matrix.build }}.tar.gz
             target/${{ matrix.target }}/release/xplr-${{ matrix.build }}.sha256
             target/${{ matrix.target }}/release/xplr-${{ matrix.build }}.tar.gz.asc
+            xplr.snap
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
@@ -130,6 +141,10 @@ jobs:
             source.tar.gz.asc
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Cleaning snapcraft
+        run: |
+          command rm --verbose ./*.snap
+          snapcraft clean
 
   publish-cargo:
     name: Publishing to Cargo

snap/snapcraft.yaml

@@ -0,0 +1,26 @@
+name: xplr
+version: git
+summary: A hackable, minimal, fast TUI file explorer
+description: |
+  xplr is a terminal UI based file explorer
+  that aims to increase our terminal productivity by being a flexible,
+  interactive orchestrator for the ever growing awesome command-line
+  utilities that work with the file-system.
+source-code: https://github.com/sayanarijit/xplr
+issues: https://github.com/sayanarijit/xplr/issues
+website: https://xplr.dev/
+
+base: core20
+grade: devel # must be 'stable' to release into candidate/stable channels
+confinement: devmode # use 'strict' once you have the right plugs and slots
+
+
+parts:
+  xplr:
+    plugin: rust
+    source: .
+
+apps:
+  xplr:
+    command: bin/xplr
+